WILLIAM S FOULSHAM (MD, MBCHB) – Ophthalmology Physician, NPI 1124581863

WILLIAM S FOULSHAM (MD, MBCHB) is a healthcare provider. based in Cambridge, Massachusetts. specializing in OPHTHALMOLOGY. They hold the professional credentials MD, MBCHB. They hold a License No. 1014696 (MA). The NPI Number for WILLIAM S FOULSHAM (MD, MBCHB) is 1124581863

Main info

Male
12 Years Of Experience
Name
WILLIAM S FOULSHAM (MD, MBCHB)
NPI
1124581863
Phone
(617) 800-7605
Address
201 BROOKLINE ST UNIT 6
Enumeration Date
10 April 2019
Last Update Date
25 September 2025

Doctor Profile

Medical School Name
OTHER
Secondary Phone
7818621620
Graduation Year
2014 (12 years ago)
PAC ID
8224495502
Group Practice PAC ID
8820315682
Professional Enrollment ID
I20230531002997
Address ID
MA024214835LE21XXXRDXX300
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience43
Completeness85
Years active:7State licenses:1Digital endpointsOther names

801 OPHTHALMOLOGY in MA

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Provider Addresses for WILLIAM S FOULSHAM (MD, MBCHB)

  • Brookline Street, Cambridgeport, Cambridge, Middlesex County, Massachusetts, 02215, United States

    CAMBRIDGE, MA 021394564

    Phone: (617) 800-7605

    Type: Mailing

  • MetroWest Medical Center: Framingham Union Hospital, 115, Lincoln Street, Framingham, Middlesex County, Massachusetts, 01702, United States

    FRAMINGHAM, MA 017026342

    Phone: (617) 800-7605

    Type: Location

  • 243 Charles St

    Boston, MA 021143096

    Phone: (617) 573-3288

    Type: Location

  • 975 Merriam Ave Ste 117

    Leominster, MA 014531220

    Phone: (978) 786-9600

    Fax: (978) 534-3210

    Type: Location

  • 67 BELMONT ST STE 302

    WORCESTER, MA 016052608

    Phone: (508) 752-1155

    Fax: (508) 752-4862

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 6 Open Payments records for all available years, with a total value of $915.

Total Amount is formed as General ($915) + Research ($0) + Ownership ($0) = $915.

Last reported payment date: 2024-12-05 • Largest payer in this snapshot: Alcon Vision LLC ($580).

Total Amount

$915

General + Research + Ownership

Payments

6

Total payment records

General Amount

$915

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-05

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2023-05-31

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20230531002997IOphthalmologyMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
92134Imaging of retina2322$0
99213Established patient office or other outpatient visit, 20-29 minutes1817$0
View full utilization report →

Insurance plans in this area (ZIP 02139)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 8820315682View full group profile
NameSpecialtyState
O P H T H A L M O L O G YMA
O P H T H A L M O L O G YMA
O P T O M E T R YCT
O P T O M E T R YMA
O P H T H A L M O L O G YMA
O P H T H A L M O L O G YMA
O P T O M E T R YMA
O P H T H A L M O L O G YNC
O P T O M E T R YMA
-MA

Reviews

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Frequently asked questions

What NPI should I save for WILLIAM S FOULSHAM (MD, MBCHB)?
Save NPI 1124581863 if you need a stable reference for WILLIAM S FOULSHAM (MD, MBCHB).
Is WILLIAM S FOULSHAM (MD, MBCHB)'s NPI currently valid?
The extract we use shows WILLIAM S FOULSHAM (MD, MBCHB) as active.
Can you summarize WILLIAM S FOULSHAM (MD, MBCHB)'s specialty in plain language?
Clinically, the directory lists WILLIAM S FOULSHAM (MD, MBCHB) with Ophthalmology Physician. Clinical services aligned with this taxonomy classification.
What location shows for WILLIAM S FOULSHAM (MD, MBCHB)?
We surface Cambridge, Massachusetts for WILLIAM S FOULSHAM (MD, MBCHB) based on available NPPES addresses.
What if Cambridge, Massachusetts seems incomplete?
Street-level detail can be omitted — open the full address list for this NPI.

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